#include <bits/stdc++.h>

using namespace std;

class Solution {
    public:
        int countGoodStrings(int low, int high, int zero, int one) {
            // zero * x + one * y >= low
            // zero * x + one * y <= high
            // C_{x+y}^x
        }
    };

int main() {
    
    //system("pause");
    return 0;
}
